Production method of stainless steel band used for internal round diamond blade

The technology of a stainless steel strip and production method is applied in the field of production of stainless steel strips for diamond inner round blades, which can solve problems such as increased costs, increased production processes, and poor flatness, and achieves reduced production costs, not easy to burst, and long service life. long effect

Inactive Publication Date: 2012-10-10
冶科金属有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Using bell-type annealing furnace, the whole roll of steel strip after treatment is in the state of coiling, with poor flatness and needs secondary back-stretching and straightening. This process will generate new internal stress and increase the production process. increase cost
[0004] 2. The production adopts 20-roll rolling mill, the width of the material is mostly more than 500mm, the amount of trimming is large, and the shape of the plate after slitting is not ideal
[0005] 3. Rolling with a width of more than 500mm cannot guarantee the thickness difference of the same plate, which is not conducive to the control of the plate shape by the rolling mill

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] First prepare the material, and select the 1Cr17Ni7 stainless steel cold-rolled steel strip blank with a thickness of 0.6mm for use.

[0037] Then, semi-finished product rolling is performed. Using a 12-roll cold rolling unit, under the rolling force of 1000KN and the rolling tension of 40KN, the oil temperature is controlled at 40°C, and the rolling speed of 150m / min is used to roll the 0.6mm stainless steel cold-rolled strip billet to a thickness It is a semi-finished stainless steel strip of 0.242mm, and the thickness tolerance of the semi-finished stainless steel strip is ±0.01mm.

[0038] After that, wash to remove the grease on the surface of the stainless steel belt.

[0039] After that, solution treatment. A continuous bright annealing furnace is used, at a furnace temperature of 1080°C, the semi-finished stainless steel strip passes through the furnace at a speed of 12m / min, and the semi-finished stainless steel strip is filled with protective gas in the furn...

Embodiment 2

[0045] First of all, the material is prepared, and the 1Cr17Ni7 stainless steel cold-rolled steel strip blank with a thickness of 1.2mm is selected.

[0046] After that, the semi-finished product is rolled. Using a 12-roll precision cold rolling unit, under a rolling force of 1000KN and a rolling tension of 80KN, at a rolling speed of 150m / min, the 1.2mm stainless steel cold-rolled strip billet is rolled into a semi-finished stainless steel with a thickness of 0.52mm The thickness tolerance of the semi-finished stainless steel strip is ±0.01mm.

[0047] After that, wash to remove the grease on the surface of the stainless steel belt.

[0048] followed by solution treatment. Using a continuous bright annealing furnace, at a furnace temperature of 1080°C, the semi-finished stainless steel strip passes through the furnace at a speed of 5.5m / min, and the semi-finished stainless steel strip is filled with protective gas in the furnace to cool, so that the furnace temperature is c...

Embodiment 3

[0057] First of all, the material is prepared, and the 1Cr17Ni7 stainless steel cold-rolled steel strip blank with a thickness of 0.6mm is selected.

[0058] Then, the semi-finished product is rolled. Using a 12-high precision cold rolling unit, under the rolling force of 1000KN and the rolling tension of 40KN, the oil temperature is controlled at 40°C, and the rolling speed of 150m / min is used to roll the 0.6mm stainless steel cold-rolled strip billet into A semi-finished stainless steel strip with a thickness of 0.23mm, the thickness tolerance of the semi-finished stainless steel strip is ±0.008mm.

[0059] After that, wash to remove the grease on the surface of the stainless steel belt.

[0060] After that, solution treatment. Using a continuous bright annealing furnace, at a furnace temperature of 1080°C, the semi-finished stainless steel strip passes through the furnace at a speed of 13m / min, and the semi-finished stainless steel strip is filled with protective gas in t...

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Abstract

The invention discloses a production method of a stainless steel band used for an internal round diamond blade. The production method comprises the following steps: rolling a stainless steel cold-rolled intermediate blank with thickness of 0.6-1.2mm at least once by adopting a 12-roller cold rolling mill unit, thus obtaining a rolled semi-finished stainless steel band with thickness of 0.2-0.6mm, and carrying out solution treatment every time after the rolling; then rolling the semi-finished stainless steel band with thickness of 0.2-0.6mm by using the 12-roller cold rolling mill unit to obtain a finished stainless steel band with thickness of 0.1-0.12mm; and finally, cleaning and continuously relieving stress. By using the production method disclosed by the invention, the stainless steel band can be made after steps such as semi-finished product rolling, solution treatment, finished product rolling, cleaning, stretching, bending, straightening treatment and stress relieving treatment. The produced internal round diamond blade utilizing the stainless steel band has the characteristics that the hardness is easier to control, and the hardness scope can be controlled within Vickers hardness HV+/-15. Therefore, in the process of manufacturing the internal round diamond blade, deformation and crack are not easy to occur, the blade service life is long. the blade can be used for about 1500 times, and the production cost is also reduced.

Description

technical field [0001] The invention relates to a production method of a stainless steel strip, more precisely, in particular to a production method of a stainless steel strip for diamond inner circle blades. Background technique [0002] Diamond inner circle blades are the core components for cutting monocrystalline silicon and magnets, and 1Cr17Ni7 stainless steel strips are the key to making diamond inner circle blades. At present, diamond inner circle blades are all rolled by 20-roller Sendzimir rolling mill, intermediate annealing, finished product cold rolling and bell annealing furnace for stress relief annealing, tension leveling and other steps. The following problems exist in the production process: [0003] 1. Using bell-type annealing furnace, the whole roll of steel strip after treatment is in the state of coiling, with poor flatness and needs secondary back-stretching and straightening. This process will generate new internal stress and increase the production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/02C21D1/30
Inventor 秦红霞李玲珍宋艳丽郑小利
Owner 冶科金属有限公司
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